diff --git a/vscode-extension/README.md b/vscode-extension/README.md
index 7370bf0..8906a3d 100644
--- a/vscode-extension/README.md
+++ b/vscode-extension/README.md
@@ -5,8 +5,15 @@
 
 ## Installation
 
+Install prebuilt vsix package by:
 ```bash
 code --install-extension snupl2-lsp-1.0.0.vsix
 ```
 
+Of course you can make a vsix package by yourself using vsce:
+```bash 
+vsce package --out snupl2-lsp.vsix 
+code --install-extension snupl2-lsp.vsix
+```
+
 Then restart VSCode.